All Ben 10 Alien Force Episodes -

– Manny and Helen, two rogue Plumber's Helpers, mistake Ben's team for evil aliens and hunt them.

Kevin moved from villain to a fan-favorite anti-hero, often providing sarcastic humor and intense action scenes.

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The Forever Knights enlist Ben's help to slay a literal dragon they have kept imprisoned for centuries. Key Debut: The Dragon (actually an alien spacecraft). Episode 12: "Plumbers' Helpers"

The team investigates an abandoned, time-displaced military base from the 1950s. They meet Professor Paradox, a scientist displaced in time who can walk through timelines. Together, they stop a monstrous, aging time anomaly from consuming the town. 11. Be-Knighted all ben 10 alien force episodes

— The team tries to infiltrate a Highbreed stronghold.

– Albedo steals the Ultimatrix and teams up with Vilgax to kidnap Gwen and Kevin, forcing Ben to surrender.

Ben’s parents catch him sneaking back into the house after an alien battle. They strictly ground him from using the Omnitrix. Ben is forced to sneak out in secret to stop a massive DNAlien plot to harvest Earth's oceans. 21. Voided

Other major antagonists include: returning arch-nemesis , who takes center stage in Season 3; the treacherous Forever Knights ; energy-draining Michael Morningstar/Darkstar ; mischievous duo Octagon and Rhomboid Vreedle ; and Charmcaster from the original series. – Manny and Helen, two rogue Plumber's Helpers,

— The team discovers the Forever Knights' ultimate plan.

– A mysterious villain named Darkstar drains the energy of both heroes and villains.

Tetrax returns to Earth to demand Chromastone, revealing that the alien holds the key to resurrecting Petropia, Sugilite. Key Lore: The rebirth of Diamondhead’s home planet. Episode 42: "Above and Beyond"

Mystery and team-building. Ben, Gwen, and Kevin form the "Team Tennyson" dynamic we know and love. Season 2: The Highbreed War This link or copies made by others cannot be deleted

– An arrogant Galvan named Albedo builds a duplicate Omnitrix. Because his DNA syncs with Ben's, he gets trapped in a human clone body of Ben and tries to destroy him.

Season 1 focuses on Ben, Gwen, and a reformed Kevin Levin building an underground resistance network (the Plumber's Helpers) to stop the Highbreed and their DNAlien foot soldiers.

Recruitment of the Plumber's Kids, Healing the Highbreed genetic curse, End of the Alien War. 20 Episodes Vilgax, Albedo, Charmcaster

Season 1 aired from to August 31, 2008 .

– Ben enters the dangerous Null Void dimension alone to stop a brutal dictator known as "The D'Void" (Dr. Animo).

The trio finds a shape-shifting alien box that mimics any attack used against it, making it nearly invincible.